Sorry, you need to enable JavaScript to visit this website.

MCST Banner Image

am1weekly_2000-169_2000-175

Mission Operations Days: 2000/169 to 2000/175
June 17, 2000 00:00:00 GMT to June 23, 2000 00:00:00 GMT


Terra Spacecraft and MODIS Instrument Status:

Terra (AM-1) is in Normal Ops Mode
MODIS is in Science Mode - A Side
MODIS has an anomaly with the LWIR focal plane. See description below.
ComponentState(s)Comment
BlackbodyA On (290 K); B OffNominal
Calibration ElectronicsA On; B OffNominal
Control ProcessorA On; B OffNominal
Nadir DoorUnlatched, OpenNominal
Space View DoorUnlatched, OpenNominal
Solar Diffuser DoorUnlatched, ClosedNominal
FDDI FormatterA On; B OffNominal
FDDI PortA On; B OffNominal
FIFO Memory#1 & #2 On; #3 & #4 OffNominal
Format ProcessorA On; B OffNominal
Power Supplies#1 On, #2 OffNominal
PV VIS FPAA On; B OffNominal
PV NIR FPAA On; B OffNominal
PV SMIR FPAA On; B OffNominal
PV LWIR FPAA On; B OffNominal
PC LWIR FPAA On; B OffNominal
RC Outgas HeatersAll Off (CS, IS, OS)Nominal
RC LWIR FPA HeaterOn (83 K)Nominal
RC SMIR FPA HeaterOffNominal
Scan AssemblyA On; B OffNominal
SDSMA Off; B OffNominal
SRCAA Off; B OffNominal
PS1 Survival HeaterEnabledNominal
PS2 Survival HeaterEnabledNominal
Timing GeneratorA On; B OffNominal
Flight SoftwareRev BD + 1 set of patches
  • FR Band 14H Gain Change (10 commands)
Nominal
Inhibit Ids Set33 (CP Macros), 53 (SDSM)CFPA Anomaly Investigation
TMONs Enabled66, 67Nominal

This Week’s Completed MODIS Activities:

Saturday, June 17, 2000

None

Sunday, June 18, 2000

None

Monday, June 19, 2000

2000/171 07:38:57 ATC OA15 SD/SDSM Open
2000/171 09:17:50 ATC OA16 SD/SDSM Screened
2000/171 20:02:00 ATC - Blackbody to 270K

Tuesday, June 20, 2000

2000/172 14:00:00 ATC Blackbody to 315K
2000/172 13:55 Real-time Set Blackbody duty cycle to 100%
2000/172 21:00:00 ATC Blackbody to 270K
2000/172 21:00 Real-time Set Blackbody duty cycle to 33%

Wednesday, June 21, 2000

2000/173 09:15:26 ATC OA16 SD/SDSM Screened
2000/173 18:42 Real-Time - Set SMIR Itwk / Vdet to 79 / 190
2000/173 19:00:00 ATC Blackbody to 290K
2000/173 19:05:48 ATC Load - OA25: SRCA 1W Spatial w/Sector Rotation, the BC and ND Filter
2000/173 20:42:48 ATC Load - OA25: SRCA 10W Spatial w/ Sector Rotation and Spectral Slit, the BC and ND Filter

MODIS Roll Sequence #1 (21:41:30 - 22:03:00)
2000/173 21:34:21 ATC Load - Set Formatter to Night Rate 00:03:15 early (for 50/50 SSR buffer)
2000/173 21:50:10 ATC Load - Set Formatter to Day Rate (for Lunar Roll)
2000/173 21:50:12 ATC Load - Set SCIABNORM Flag to ABNORM
2000/173 21:50:14 ATC Load - PC DC Restore OFF
2000/173 21:50:16 ATC Load - PV DC Restore OFF
2000/173 21:50:18 ATC Load - Sector Rotation to -3072 (EA to SV and OBCs)
2000/173 21:56:32 ATC Load - Sector Rotation to 0 (Normal)
2000/173 21:56:34 ATC Load - PC DC Restore ON
2000/173 21:56:36 ATC Load - PV DC Restore ON
2000/173 21:56:38 ATC Load - Set SCIABNORM Flag to NORM
2000/173 21:56:40 ATC Load - Set Formatter to Night Rate (for Lunar Roll)
2000/173 22:30:18 ATC Load - Set Formatter to Day Rate 00:03:15 late (for 50/50 SSR buffer)

MODIS Roll Sequence #2 (23:20:15- 23:41:04)
2000/173 22:42 Real-Time - Set SMIR Itwk / Vdet to 110 / 226
2000/173 23:13:14 ATC Load - Set Formatter to Night Rate 00:03:15 early (for 50/50 SSR buffer)
2000/173 23:28:43 ATC Load - Set Formatter to Day Rate (for Lunar Roll)
2000/173 23:28:45 ATC Load - Set SCIABNORM Flag to ABNORM
2000/173 23:28:47 ATC Load - PC DC Restore OFF
2000/173 23:28:49 ATC Load - PV DC Restore OFF
2000/173 23:28:51 ATC Load - Sector Rotation to -3072 (EA to SV and OBCs)
2000/173 23:35:05 ATC Load - Sector Rotation to 0 (Normal)
2000/173 23:35:07 ATC Load - PC DC Restore ON
2000/173 23:35:09 ATC Load - PV DC Restore ON
2000/173 23:35:11 ATC Load - Set SCIABNORM Flag to NORM
2000/173 23:35:13 ATC Load - Set Formatter to Night Rate (for Lunar Roll)

Thursday, June 22, 2000

MODIS Roll Sequence #3 (00:58:59- 01:19:37)
2000/174 00:09:11 ATC Load - Set Formatter to Day Rate 00:03:15 late (for 50/50 SSR buffer)
2000/174 00:18 Real-Time - Set SMIR Itwk / Vdet to 100 / 218
2000/174 00:52:07 ATC Load - Set Formatter to Night Rate 00:03:15 early (for 50/50 SSR buffer)
2000/174 01:07:16 ATC Load - Set Formatter to Day Rate (for Lunar Roll)
2000/174 01:07:18 ATC Load - Set SCIABNORM Flag to ABNORM
2000/174 01:07:20 ATC Load - PC DC Restore OFF
2000/174 01:07:22 ATC Load - PV DC Restore OFF
2000/174 01:07:24 ATC Load - Sector Rotation to -3072 (EA to SV and OBCs)
2000/174 01:13:38 ATC Load - Sector Rotation to 0 (Normal)
2000/174 01:13:40 ATC Load - PC DC Restore ON
2000/174 01:13:42 ATC Load - PV DC Restore ON
2000/174 01:13:44 ATC Load - Set SCIABNORM Flag to NORM
2000/174 01:13:46 ATC Load - Set Formatter to Night Rate (for Lunar Roll)
2000/174 01:19:37 MODIS Lunar Roll #3 (End)
2000/174 01:48:05 ATC Load - Set Formatter to Day Rate 00:03:15 late (for 50/50 SSR buffer)
2000/174 01:51:29 ATC Load - OA25: SRCA 1W Spatial w/Sector Rotation, the BC and ND Filter
2000/174 03:25:48 ATC Load - OA25: SRCA 10W Spatial w/Sector Rotation and Spectral Slit, the BC and ND Filter

2000/174 04:25 Real-Time - Set SMIR Itwk / Vdet to 110 / 226
2000/174 19:35 Real-Time – Set Inhibit ID 33 for CP commands to prevent door macros from executing.
2000/174 20:00 Real-Time – Set Inhibit ID 53 for SD/SDSM commands to prevent SDSM from turning on.

Friday, June 23, 2000

None

This Week's Scheduled MODIS Activities Not Completed:

Friday, June 23, 2000

2000/175 22:04:12 ATC OA16 SD/SDSM Screened

Door and SDSM activities were inhibited while anomaly resolution continues.

Upcoming MODIS Events:

Saturday, June 27, 2000

None

Sunday, June 25, 2000

None

Monday, June 26, 2000

2000/178 20:02:00 ATC - Blackbody to 270K

Tuesday, June 27, 2000

2000/179 14:00:00 ATC Blackbody to 315K
2000/179 14:?? Real-time Set Blackbody duty cycle to 100%
2000/179 21:00:00 ATC Blackbody to 270K
2000/179 21:?? Real-time Set Blackbody duty cycle to 33%

Wednesday, June 28, 2000

2000/180 19:00:00 ATC Blackbody to 290K

Thursday, June 29, 2000

None

Friday, June 30, 2000

None

Maneuvers:

Tue, June 20, 2000 – Drag Makeup Maneuver
Wed, June 21, 2000 – MODIS Roll #1 (2000/173/21:50:10 – 21:56:40), roll degree = -18.0044
Wed, June 21, 2000 – MODIS Roll #2 (2000/173/23:28:43 – 23:35:13), roll degree = -17.4518
Wed, June 21, 2000 – MODIS Roll #3 (2000/174/01:07:16 – 01:13:46), roll degree = -16.9070

MODIS Anomalies:

MODIS appears to have stopped controlling on the LWIR Focal Plane. Analysis is underway. Solar Diffuser Door operations are suspended during this analysis.

General Instrument Comments:

MODIS is in Science Mode on the A-side with the SVD and NAD open.

MODIS Telemetry Trends:

See MODIS Anomalies section.

Non-MODIS Significant Events:

None. The DMU (Drag Make-Up Maneuver) and the MODIS Roll maneuvers were nominal.

Limited Life Item Status:

SRCA 10W Lamp #1: 167.2 of 500 hours
SRCA 10W Lamp #2: 132.7 of 500 hours
SRCA 10W Lamp #3: 141.9 of 500 hours
SRCA 10W Lamp #4: 61.5 of 500 hours

SRCA 1W Lamp #1: 555.1 of 4000 hours
SRCA 1W Lamp #2: 276.3 of 4000 hours

Solar Diffuser Door: 1381 of 3022 Movements
Nadir Aperture Door: 532 of 1316 Movements
Space View Door: 437 of 1316 Movements